A computer network refers to a group of interconnected computers. Networks can be classified according to the network layer in which they operate according to basic reference models. The reference models may differ from one industry to another, like the five-layer Internet Protocol Suite model.

Computer networks are classified depending on various factors like scale, connection method, network relationships and protocol.

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With the rise of technology and electronic commerce, most small and large companies today are driven by Internet usage. The Internet and the influence they have on electronic commerce and business takes more than one way to become the "great equalizer" for small businesses and larger corporate giants.

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